Please help me for below questions.

1 of 5.    
How can an existing picklist field with 750 values be shared across objects? 
     
A.        Create a new Global Value Set in the Setup menu under Picklist Value Sets
B.        Ensure the field is an unrestricted picklist, then Promote to a Global Value Set
C.        Ensure the field is a restricted picklist, then Promote to a Global Value Set
D.        Reduce the number of values to 500, then Promote to a Global Value Set


2 of 5.    
Universal Containers tracks the Priority of new Positions using a custom field. The value of 'Medium' is currently selected as the default value. The field definition is modified to include this default value formula: IF($UserRole.Name = ""VP Engineering"", ""Critical"", """").
 
Which value will be displayed in the field when a new Position record is created by a user with the role ""VP Sales""?
     
A.        High
B.        Medium
C.        Critical
D.        No value


3 of 5.    
Which two steps should an administrator take to quickly and easily activate a session-based Permission Set? 
     Choose 2 answers
     
A.        Enable the Session Activation Required option for the Permission Set
B.        Use the Activate Session-Based Permission Set action in Process Builder
C.        Use the Activate Session-Based Permission Set action in a flow
D.        Enable the Session Based Activation option for the Permission Set


4 of 5.    
What is a new feature of the Data Import Wizard? 
     
A.        Work with multiple delimiter values to split data
B.        Match picklist values to look-up and master-detail fields
C.        Import duplicate rows with Smart-Matching
D.        Use a search function to map fields more easily


5 of 5.    
Universal Containers' production org is currently on the Summer '17 release. A Permission Set named "Integration User" already exists in the org with the "API Enabled" administrative permission enabled. A change set is deployed to this org that includes a Permission Set with the same name that has the "Author Apex" administrative permission enabled but does not have the "API Enabled" permission enabled.
 
Which behavior will the Permission Set have after deployment? 
     
A.        API Enabled
B.        The deployment contents are merged with the current org data
C.        Author Apex
D.        An error occurs